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GAA17CA010

2016-10-06 · Boca Reservoir, California, United States · None · 1 aircraft · Status: Completed

Current FAA registration · N786AB

Make / Model
BACKCOUNTRY SUPER CUBS LLC BACKCOUNTRY SUPERCUB
Year of manufacture
2014 · 2 years old at event
Engine
LYCOMING O-360-J2A (145 hp)
Seats / Engines
2 seats · 1 engine
Last airworthiness date
20151028
ADS-B equipped
Yes — Mode-S AAA6D2

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

Probable cause & findings

The pilot's decision to continue the taxi on unsuitable muddy terrain, which resulted in a nose-over.

Factual narrative

The pilot of the tailwheel equipped airplane with tundra tires, reported that after landing off airport next to a reservoir, the tires became stuck in muddy terrain. He further reported that he decided to "use power and elevator to unstick the tires". The tires loosened from the mud, however, when he applied additional power the airplane nosed over. The airplane sustained substantial damage to its vertical stabilizer and rudder. The pilot reported that there were no pre impact mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation. The pilot of the tailwheel equipped airplane with tundra tires, reported that after landing off airport next to a reservoir, the tires became stuck in muddy terrain. He further reported that he decided to "use power and elevator to unstick the tires". The tires loosened from the mud, however, when he applied additional power the airplane nosed over. The airplane sustained substantial damage to its vertical stabilizer and rudder. The pilot reported that there were no pre impact mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12

NTSB Findings

FAA avdata. C = Cause, F = Factor.

  • C Personnel issues-Action/decision-Info processing/decision-Decision making/judgment-Pilot - C
  • C Personnel issues-Task performance-Use of equip/info-Aircraft control-Pilot - C
  • — Environmental issues-Physical environment-Runway/land/takeoff/taxi surface-Soft surface-Effect on operation
  • — Environmental issues-Physical environment-Terrain-Wet/muddy terrain-Effect on operation

Verbatim from NTSB's published report. Source file NTSB_2016_GAA17CA010.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.